2106294780 has 48 divisors (see below), whose sum is σ = 6208030080. Its totient is φ = 532116288.

The previous prime is 2106294739. The next prime is 2106294787. The reversal of 2106294780 is 874926012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106294787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922674 + ... + 924953.

It is an arithmetic number, because the mean of its divisors is an integer number (129333960).

Almost surely, 2^2106294780 is an apocalyptic number.

2106294780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106294780 is an abundant number, since it is smaller than the sum of its proper divisors (4101735300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2106294780 is a wasteful number, since it uses less digits than its factorization.

2106294780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847658 (or 1847656 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2106294780 is about 45894.3872385284. The cubic root of 2106294780 is about 1281.8574067680.

The spelling of 2106294780 in words is "two billion, one hundred six million, two hundred ninety-four thousand, seven hundred eighty".